whittemoke



A. s. WHITTEMORE/ Chimney.

Patented Nov. 12, 1867-.

N. PETERS. Phaic-Lilhogmphar, Washington. a c.

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substantially as and for the purpose set forth.

GHIMNEYS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, A. S. WHITTEMORE, oi Willimantic, in the county ofWindham, and State of Connecticut, have made anew and useful Improvementin Combined Chimney and Ventilator; and I do hereby declare that thefollowing is a full, clear, and cxact'description thereof, which willenable those skilled in the art to make and use the same, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon.

This invention consists in combining a chimney or flue with a ventilatorin such amanner that the compartments of a building may be thoroughlyventilated, and the chimney or flue at the same time rendered perfectlyfire-proof. 'In the accompanying sheet of drawings Figure 1 is avertical central section of my invention, taken in the line a: 2:, fig.2.

Figure 2, a horizontal section of the same, taken in the liney y, fig.1.

Similar letters of reference indicate like parts. I

A represents a chimney or flue, constructed of tiles of any suitablelength, say two feet, and'of a diameter corresponding to the size of thestove or furnace to which it is applied. These tiles are formed withflanges a at each end. These flanges are simply an enlargement of theexterior tiles to form abutting ends of considcrable area, the flange atone end of each tile having an annular recess, 6, at its inner edge,while the flange at the opposite end has an annular recess, a, at itsouter edge, so that the tongue d, formed by'the recess 6 at one end of atile, may fit into the recess a in the flange of the adjoining tile, andthe tongue e formed by the recess c fit into the recess 6. These flangeshave annular recessesfmade in them, in which elastic circular metalhands B'are fitted, the ends of the bands overlapping each other andexpanding or contracting with the tiles so as to insure tightjoints atall times, without being liable to fracture the ends of the tiles. Thistile-chimney or fiue is encompassed bya sheet-metal pipe, C. Galvanizediron or i nc would probably be the best material.

This pipe considerably exceeds in diameter the chimney or flue, so thata space,f, is allowed between the flue and pipe for the passage of air,which is admitted into the lower end-of the latter through a tube (shownin red) from the outer side of the building, and thus pure air may belet into any compartment through which the pipe and flue pass by havingholes 9 made in the pipe, near the floor of the compartment, andvitiated air may be let inbo the pipe through holes it made in theformer, near the ceiling of the compartment. This air-tube, it will beseen, renders the chimney or fiue incapable of setting fire to anyadjacent combustible material, as the latter cannot come in directcontact with the chimney ,or flue.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent- The combination of a tile-chimney or flue A with anair pipe, 0,, the latter encompassing the former, and communicating withthe external air and the compartments within the building, substantiallyas and for the purpose specified.

I further claim the elastic bands B, fitted in the annular rccessesf inthe flanges at the ends of the tiles,

. A. S. WHITTEMQRE.

Witnesses:

J. R. ARNOLD, W. C. -WITTER.

